HP Prime for All

English  Русский 

Syntax

nDeriv(Expr(Xpr),Var(var),[Real(h)])

Description

Returns an approximation of the derivative number at a point:(Xpr(var+h)-Xpr(var-h))/(2*h) (by default h=0.001).

Example

nDeriv(f(x),x,h) returns (f(x+h)-(f(x-h)))*0.5/h

nDeriv — Discussion

© 2017 Oleksandr Sidko — mail to site author